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Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methyl cellulose, simplify the propyl methyl cellulose (HPMC hydroxypropylmethylcellulose, abbreviation), it is to belong to a variety of mixed non-ionic cellulose ether. It is a semi-synthetic, inactive, viscoelastic polymer commonly used in ophthalmology as a lubricant, or as an excipient or excipient in oral medicines, commonly found in a wide variety of commodities. Hydroxypropyl cellulose can be used as a food additive, emulsifier, thickener, suspension agent and animal gelatin substitute.
ITEMS SPECIFICATIONS Appearance White Powder Decomposition Temperature 200min Discoloration Temperature 190-200℃ Viscosity 400 PH Value 5~8 Density 1.39g/cm3 Carbonization temperature 280-300℃ Type Food grade Content 99% Surface tension 42-56dyne/cm for 2% aqueous solution -
Hydroxypropyl Methylcellulose (MHPC)
Hydroxypropyl methylcellulose (MHPC) are odorless, tasteless,non-toxic cellulose ethers that have had hyrdroxyl groups on the cellulose chain substituted for a methoxy or hydroxypropyl group with good water solubility. HPMC F60S is high-viscosity grade which is used as a thickener, binder, and film former in agrochemicals, coatings, ceramics, adhesives, inks, and various other applications.
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Hydroxyethyl Cellulose (HEC)
Hydroxyethyl Cellulose(HEC) is a non-ionic,water-soluble polymer derived form cellulose through a series of chemical and physical processes.HEC is a white to light yellowish,odorless and tasteless powder,readily soluble in hot or cold water to form a viscous gel solution.When pH in solution 2 to 12,the solution is quite stable.Since HEC group is nonionic one in water solution, it won’t be reacted with other anions or cations and insensitive to the salts.
But HEC molecule is capable of generating esterification,etherification,so it is possible to make it insoluble in water or improve its properties.HEC also has good film-forming ability and surface activity.
